CN102622998A

CN102622998A - Pin-barrel for a musical box and musical box comprising the same

Info

Publication number: CN102622998A
Application number: CN2012100180575A
Authority: CN
Inventors: J·法夫尔
Original assignee: Montres Breguet SA
Current assignee: Montres Breguet SA
Priority date: 2011-01-28
Filing date: 2012-01-19
Publication date: 2012-08-01
Anticipated expiration: 2032-01-19
Also published as: EP2482275A1; JP5972579B2; EP2482275B1; US20120192697A1; CN102622998B; CH704425A2; HK1174430A1; JP2012159501A; US8598442B2

Abstract

The pin-barrel (1) is provided for a musical box in the form of a wristwatch. The pin-barrel is formed of a set of parallel pairs of strips (3, 3'), which are connected at one end thereof to a heel (2). Each pair of strips forms a tuning fork, wherein one of the strips (3') of the pair can be set in vibration by at least one pin of a musical module wherein the vibration propagates to the other strip (3) of the pair by a longitudinal wave.

Description

Be used for the keyboard of music box and comprise the music box of this keyboard

Technical field

The present invention relates to a kind of keyboard/pin tube (clavier/pin-barrel) that is used for the small size music box, said small size music box can be the form of watch.

The invention still further relates to the music box that comprises at least one this type keyboard, particularly the music watch.

Background technology

In order music module to be contained in the music box of form for table, the size of all building blocks of said music module must reduce, and melody, good sound quality and the high acoustics grade of variation still is provided simultaneously.WO patent No.2008/007161 discloses a kind of like this music module of the movement that is used to show.Said music module comprises at least one keyboard.Said keyboard is formed by number of metal band or blade, and said metal band is positioned in parallel within the plane and is connected to heel, and said heel is fixed to the machine plate of table.Each band can produce a sound with definite tone according to its length.These bands are triggered to produce musical sound by the pin of rotating disc.Be distributed in said pin on the rotating disc can lifting or crooked at least some said bands with discharge these bands, causing these bands vibrations, thereby produce musical sound.

Acoustic efficiency, the vibration duration of the one or more bands that for example are triggered depends on a number of factors.These factors relate to the geometric configuration of each band, for example its height and length, properties of materials, for example elastic modulus, density and inner decay, any thermal treatment of keyboard or clamping or fixing.If reduce to comprise the size of building block of the music module of keyboard, the vibration duration of the band that then is triggered can be very short, because the internal friction in the table becomes bigger with respect to the effective mass of keyboard.Even for the best keyboard of possibility that is used for music module of having considered above-mentioned factor, also be difficult under the situation that does not produce undesired effect, the optimization form is the keyboard band vibration duration that is triggered of the music box of table.

Summary of the invention

Therefore, the purpose of this invention is to provide a kind of keyboard that is used for music box, wherein above-mentioned banded structure is the above defective that has overcome prior art.

The present invention thereby relate to a kind of keyboard that is used for music box, said keyboard is included in the characteristic that limits in the independent claims 1.

In dependent claims 2 to 9, define the specific embodiment of keyboard.

An advantage that is used for the said keyboard of music box is the following fact: said keyboard is formed by a series of paired bands, and wherein every pair of band forms a tuning fork.The band that triggers in a pair of band can cause the alternative in vitro test of vibration propagation in the said a pair of band owing to longitudinal wave.Vibration can easily be guided at least one radiant section of music box from said a pair of band, and said music box can be the form of watch.Radiant section can be machine plate or sound film.From a pair of or some raisings that can observe the sound intensity to the vibration of band.The sound that is produced by said keyboard is more pure, because only the band of every pair of vibration natural mode is propagated towards radiant section.

Therefore the present invention relates to a kind of music box, and said music box comprises said keyboard and has the characteristic that in independent claims 10, limits.

Especially the specific embodiment of music box for the form of table limits in dependent claims 11 to 13.

Description of drawings

From following explanation, especially with reference to accompanying drawing, purpose, advantage and the characteristic that can be more clearly visible the keyboard that is used for music box and comprise the music box of this keyboard, wherein:

Fig. 1 illustrates the 3-D view according to the simplification of the keyboard that is used for music box of the present invention; And

Fig. 2 a to 2c illustrates each operation steps that is used to trigger according to the music module of the music box of of keyboard of the present invention or several strips with simplified way.

Embodiment

In the explanation below, comprise according to all known parts of the music module of the music box of keyboard of the present invention and will only do concise and to the point description.Emphasis will be placed on being provided with of band of music box keyboard.

Fig. 1 illustrates the 3-D view of the simplification of the keyboard 1 that is used for music box, and this music box can be the form of watch.Keyboard 1 forms the part of the music module of music box, and the hit agency of perhaps showing is to be used for during confirming, producing music.

Keyboard 1 comprises a series of paired bands or

blade

3,3 '.One end of every pair of band is fixed to identical heel 2, and said heel 2 for example can be fixed to plate or the machine plate in the watchcase in the music box or the music table.Preferably, said band and heel 2 are integral, thereby form the single parts that are manufactured from the same material.Said material for example can be a metal material, and such as steel or copper, perhaps noble metal such as gold, can be the material with non-crystalline structure also perhaps, such as metallic glass.

One free end in the band 3,3 ' also comprises cam-shaped element 4, and it forms the slope.Said slope preferably forms the inclined-plane of qualification with respect to the free-ended acute angle of band 3 '.Trigger unit for example sell can be in the plane parallel with band 3 ' when the free-ended direction of band moves, get into the slope of cam 4 and to contact with lifting or bent strip 3 '.In case trigger unit moves to beyond the said cam 4, then band 3 ' is released, and causes band 3 ' vibration, the alternative in vitro test 3 of this vibration propagation in the tuning fork.

Paired band 3,3 ' can be parallel to setting each other.Two bands 3 of every centering, 3 ' the preferably distance setting of two bands to equate of the adjacent centering of distance.But, also it is contemplated that all paired bands are set in identical plane.

Each band can be a rectilinear form, and it has rectangle, circular or other xsect, and said xsect can be identical on the whole length of band.But said xsect also can be along the little by little perhaps discontinuous change of the length of each band.The length of two bands of every centering is preferably identical, to limit tuning fork, still also can be of different sizes.

All paired bands 3 of keyboard 1,3 ' size are set at: when every pair of band during by the certain trigger component triggers of music module, every pair of band produces overall different note.But, also can have two right bands of several compositions, it can produce identical particular note.

Described with reference to Fig. 2 a to 2c like hereinafter, each trigger unit is operated with one of two bands in a pair of band that will be triggered and is made as vibration.The vibration of one of band that is triggered 3 ' through longitudinal wave propagate into form tuning fork this to the alternative in vitro test in the band 3.This has improved the sound intensity of every pair of band that is triggered.In addition, the sound that is produced by keyboard has better sound purity, and this is because the single eigentone of the band of every pair of vibration is propagated towards the radiant section of music table.

Fig. 2 a to 2c illustrates in order to produce musical sound, has according to the different step in the operation of the music module of keyboard of the present invention.Except keyboard 1, the music module that schematically shows also comprises right cylinder or disk 10, and the pin 11 that is distributed with some on it is to be used as trigger unit.Said right cylinder or disk 10 are set to around rotation rotation, and this rotation is perpendicular to the layout of all paired bands 3,3 ' band.Pin 11 is distributed on right cylinder or the disk 10, with this right cylinder of box lunch or disk is rotated and different paired band 3,3 ' when being triggered successively, produces specific musical sound.

In Fig. 2 a, the disk 10 that is parallel to all the band settings in the paired band 3,3 ' is set to around the axis rotation perpendicular to said a series of paired bands.Said disk comprises several pin 11 on a face of the said disk relative with band 3,3 ', said pin 11 is distributed as and produces specific musical sound.The free end of a band 3 ' in a pair of band shown near one of them pin 11 cam-shaped element 4 faces, but also do not contact with the slope of cam 4.

In Fig. 2 b, one of them pin 11 of disk gets into the cam 4 of band 3 ' and contacts.When said pin moved on the slope of cam 4 along the free-ended direction of band 3 ', this had the effect of lifting or bent strip 3 '.Space boundary between the height of cam and pin and pin and the band bending of maximum possible of the band 3 ' cause owing to moving of the pin that contacts with cam 4.According to desirable bending value, for example it is contemplated that move said disk more near or further from paired band.

In Fig. 2 c, the pin 11 that before contacts with the cam 4 of band 3 ' has moved to outside the said cam, and this has the effect that discharges band 3 ', and band 3 ' begins to vibrate to produce definite note.The vibration that in band 3 ', produces also through longitudinal wave propagate into form tuning fork this to the alternative in vitro test in the band 3.Therefore, by this note that vibration of band produces had the sound purity that is in single eigentone.Advantageously be delivered to the external component of table, the high-caliber acoustic radiating of the sound that is produced to be used for from this vibration to band.

Disk 10 or right cylinder can be installed on the machine plate of movement of table.If the paired band of a plurality of series is fixed on the different lateral surface of heel, a plurality of disks or a plurality of right cylinder with pin 11 can be provided also then.

From the explanation that provided just now, those skilled in the art can design keyboard or comprise the multiple modification of the watchcase of this keyboard, and can not depart from the scope of the invention defined by the claims.Except straight line, the shape of each band in the band can limit at least one curve in pairs.The shaped form band can be provided with around the right cylinder with pin coaxially.The band of every centering can be detachably fixed to heel, changes according to the musical sound that will produce to allow one or more pairs of bands.

Claims

1. keyboard (1) that is used for music box; It is characterized in that; Said keyboard is formed by a series of paired bands (3,3 '), and an end of said band is connected to heel (2), and every pair of band forms tuning fork; Wherein, First band (3 ') in the band can be set at vibration by the trigger unit (11) of said first band of being arranged on of music module below in pairs, and wherein said vibration propagates into second band (3) in the paired band through longitudinal wave, and said second band (3) is arranged on the top of said first band (3 ').

2. keyboard according to claim 1 (1) is characterized in that, all paired bands (3,3 ') are provided with in parallel to each other.

3. keyboard according to claim 2 (1) is characterized in that, every pair of band (3,3 ') is provided with at a distance of identical distance with adjacent a pair of band (3,3 ').

4. keyboard according to claim 1 (1) is characterized in that, every pair of band (3,3 ') is integral to form independent parts with heel (2).

5. keyboard according to claim 1 (1); It is characterized in that; Be provided with cam-shaped element (4) near the free end of first band (3 ') in every pair of band; With allow one of a plurality of trigger units (11) according to music module against cam so that lifting or bent strip, and discharge band subsequently so that said band is set at vibration.

6. keyboard according to claim 1 (1) is characterized in that, every pair of band (3,3 ') is rectilinear.

7. keyboard according to claim 1 (1) is characterized in that, the length of every pair of band (3,3 ') is identical, but a pair of band is different with another length to band.

8. keyboard according to claim 1 (1) is characterized in that, the xsect of each band is identical on the whole length of each band.

9. keyboard according to claim 1 (1) is characterized in that, the xsect of each band (3,3 ') along the length of each band little by little or discontinuous variation.

10. music box that comprises music module, said music module has at least one keyboard according to claim 1 (1), and is used to trigger paired band (3,3 ') to produce a series of trigger units (11) of musical sound.

11. music box according to claim 10 is characterized in that, said music box is processed the form of music table.

12. music box according to claim 10; It is characterized in that; Said a series of trigger unit is disk (10); On a surface of the said disk relative with the paired band of keyboard (1), have the pin (11) that distributes with ad hoc fashion according to the music that will produce, said music is through the rotation of said disk and via the motion of pin triggering in succession of the particular bands in the paired band (3,3 ') to be produced.

13. music box according to claim 10; It is characterized in that; Said a series of trigger unit is a right cylinder; On said cylindrical outside surface, have the pin (11) that distributes with ad hoc fashion according to the music that will produce, said music is through said cylindrical rotation and via the motion of pin triggering in succession of the particular bands in the paired band (3,3 ') to be produced.